Who studied dinosaur fossils how could they now this?

Paleontologists study dinosaur fossils to understand their Biology, behavior, and evolution. They analyze fossilized remains, including bones, teeth, and footprints, using techniques such as radiographic imaging and isotopic analysis. By comparing these fossils to modern animals and employing geological context, they can reconstruct the environments dinosaurs lived in and infer their lifestyles. This multidisciplinary approach allows researchers to piece together the history of these ancient creatures.